49449997 has 2 divisors, whose sum is σ = 49449998. Its totient is φ = 49449996.

The previous prime is 49449973. The next prime is 49450061. The reversal of 49449997 is 79994494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26687556 + 22762441 = 5166^2 + 4771^2 .

It is a cyclic number.

It is not a de Polignac number, because 49449997 - 2¹¹ = 49447949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49449937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24724998 + 24724999.

It is an arithmetic number, because the mean of its divisors is an integer number (24724999).

Almost surely, 2^49449997 is an apocalyptic number.

It is an amenable number.

49449997 is a deficient number, since it is larger than the sum of its proper divisors (1).

49449997 is an equidigital number, since it uses as much as digits as its factorization.

49449997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 55.

The square root of 49449997 is about 7032.0691833912. The cubic root of 49449997 is about 367.0473474243.

It can be divided in two parts, 4944 and 9997, that added together give a palindrome (14941).

The spelling of 49449997 in words is "forty-nine million, four hundred forty-nine thousand, nine hundred ninety-seven".